#include"tool.h"
char a[(1<<30)];
int * f()
{
    int *a=(int*)malloc(sizeof(int)*10);
    return a;
}
int main()
{
    int *p;
    p=(int*)(malloc(sizeof(int)*100000000));

    if(p)
        puts("Allocate successfully!");
    else
        puts("Allocate failed!");
    free(p);

    p=NULL;

    return 0;
}
